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Finding the Fourth Proportional to 128,033.60, 192,050.40 and 88,667.60

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Solution

The fourth proportional to 128,033.60, 192,050.40 and 88,667.60 is: 133,001.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,033.60 : 192,050.40 = 88,667.60 : x
  2. Step 2: Convert to fraction form
    128,033.60/192,050.40 = 88,667.60/x
  3. Step 3: Cross multiply
    128,033.60x = 192,050.40 × 88,667.60
  4. Step 4: Simplify right side
    128,033.60x = 17,028,648,047.04
  5. Step 5: Solve for x
    x = 17,028,648,047.04/128,033.60
  6. Step 6: Final answer
    x = 133,001.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.